diff --git a/build.sbt b/build.sbt
index 53a0ee2..15ba943 100644
--- a/build.sbt
+++ b/build.sbt
@@ -5,7 +5,7 @@ lazy val finchVersion = "0.31.0"
 lazy val buildSettings = Seq(
   organization := "com.github.finagle",
   scalaVersion := "2.12.7",
-  crossScalaVersions := Seq("2.11.12", "2.12.7")
+  crossScalaVersions := Seq("2.13.5", "2.12.7")
 )
 
 lazy val finagleOAuth2Version = "19.8.0"